I'm sure you'd be ok with an athiest teacher telling a christian student that there is no God too, right?

That's really the only reason the parents are upset. Because now they have to figure out how to explain why Santa, the Easter Bunny, and the Tooth Fairy are all made up bullshiat but Jesus is totally real.

mattharvest:ManateeGag: I'm sure you'd be ok with an athiest teacher telling a christian student that there is no God too, right?

Why is a school talking about Santa or any other religious figure at all?

According to TFA, the exercise was to draw a picture of something real and a picture of something made up. Some kids started drawing Santa in the "real" column or whatever and the teacher decided that that is the moment when she must step in and correct these misinformed five year old plebes.